H34.8321 Tributary (branch) retinal vein occlusion, left eye, with retinal neovascularization

Billable ICD-10-CM code, FY2026.

Built from H34.832 with 7th character 1 (with retinal neovascularization).

Applies from H34 Retinal vascular occlusions

Excludes1 (never code together)

• amaurosis fugax (G45.3)

Applies from H34.83 Tributary (branch) retinal vein occlusion

7th character note

• One of the following 7th characters is to be assigned to codes in subcategory H34.83 to designate the severity of the occlusion:

7th character required

• 0 — with macular edema
• 1 — with retinal neovascularization
• 2 — stable

Risk adjustment (HCC)

• CMS-HCC V28: HCC 298 — Severe Diabetic Eye Disease, Retinal Vein Occlusion, and Vitreous Hemorrhage

Code annotations containing back-references to H34.8321

Back-references to H34

• Type 2 Excludes: I74 Arterial embolism and thrombosis ("ophthalmic embolism and thrombosis (H34.-)")
• Type 2 Excludes: I74 Arterial embolism and thrombosis ("retinal embolism and thrombosis (H34.-)")

Nearby codes

• H34.8310 Tributary (branch) retinal vein occlusion, right eye, with macular edema
• H34.8311 Tributary (branch) retinal vein occlusion, right eye, with retinal neovascularization
• H34.8312 Tributary (branch) retinal vein occlusion, right eye, stable
• H34.832 Tributary (branch) retinal vein occlusion, left eye
• H34.8320 Tributary (branch) retinal vein occlusion, left eye, with macular edema
• H34.8321 Tributary (branch) retinal vein occlusion, left eye, with retinal neovascularization (this code)
• H34.8322 Tributary (branch) retinal vein occlusion, left eye, stable
• H34.833 Tributary (branch) retinal vein occlusion, bilateral
• H34.8330 Tributary (branch) retinal vein occlusion, bilateral, with macular edema
• H34.8331 Tributary (branch) retinal vein occlusion, bilateral, with retinal neovascularization
• H34.8332 Tributary (branch) retinal vein occlusion, bilateral, stable